RAID is old news with drives approaching 4 TB or surpassing. Having multiple storage devices on a network is safer. It's wasted resources packing mutiple drives in a single point of failure!
What really matters is the performance Virtual Machines experience on the file-systems.
I always figured JFS was a better solution because of the low performance overhead.
This frees up CPU cycles for the Virtuals.
That's one test I'd like to see; perhaps it's being tested but I don't recall seeing the statistics.
Just from my experience alone, I've noticed I can't tell much difference in any of them: Ext4, JFS, XFS, BTRFS
And it is not clear how can it scale better than existing mdraid+lvm solutions
Last edited by Ra698shida; 09-12-2013 at 12:55 AM.
What we really need in linux is something like Amplidata's Distributed Storage System. That thing looks ideal for both uptime, bit rot, and data loss.
Sort of like a next-gen zfs.